Just did some quick testing. The python library, libpebble, seems to work fine on N900 after some minor changes for py25 compatibility, with or without using lightblue, but only when I put the watch in discoverable mode (i.e. by opening the Settings -> Bluetooth screen).

If the watch is in any other screen, I can't even establish a rfcomm connection:

Does anyone have an updated thoughts on using the Pebble with the N900 so late in the game?
I can't find the app Rockwatch available anymore and I don't remember if it worked on the N900 with the N9 app compatibility program, which I do not recall the name of either.
I suppose I could set the Pebble up with a borrowed Android phone but that would loose much of the function of the smartwatch.
Anyways I finally have my Pebble coming and am still using a N900 now that the party is ending despite starting this thread.

Does anyone have an updated thoughts on using the Pebble with the N900 so late in the game?
I can't find the app Rockwatch available anymore and I don't remember if it worked on the N900 with the N9 app compatibility program, which I do not recall the name of either.
I suppose I could set the Pebble up with a borrowed Android phone but that would loose much of the function of the smartwatch.
Anyways I finally have my Pebble coming and am still using a N900 now that the party is ending despite starting this thread.